Improvement in direct-acting engines



AVGAMPBELL & 0. B. HARDICK.

DIRECT ACTING ENGINE.

I No 42,527, Patented Apr, 26, 1864.

I ifl nir;

5M 15 7am ABRAHAM CAMPBELL AND CHARLES B. nAnmoK, 0F BROOKLYN, NEW

YORK, AssIeNons TO THEMSELVES AND JOHN HABDIGK AND ALBERT B. CAMPBELL,OF SAME PLACE.

IMPROVEMENT IN DIRECT-ACTING ENGINES.

Specification forming part of Letters Patent No. d2,5'7, dated April 26,1864.

To all whom it may concern: 1

Be it known that we, ABRAHAM CAMPBELL,

and GHARLEs B. HARDIGK, of Brooklyn, in

the county otKings and State of New York,

have invented and madea certain new anduseful Improvement inDirect-Actin g Engines;

and we do. hereby declare the following tobe a full, clear, and exactdescription of the said invention, reference being had to the annexed(rawings, making part of this specification, wherein- Figure 1represents an engine fitted with our im )rovement,'the bed being insection to show the parts more. clearly; and Fig. 2 is a side view ofthe journal-box employed by us.

Similar parts are indicated by the same letters.

Our invention relates to an arrangementof link motion for communicatingmotion from the cross-head of a direct-acting engine to a' crank on aflywheel shaft, whereby the parts are applied compactly in asmall spaceand the sliding motions heretofore inseparable from the mechanisms usedfor this purpose are avoided, so that our device is much more durableand noiseless in its operation than the direct-acting engines beforefitted with a.fly- Wheel.

In the drawings a represents a steam'cylin der fitted with avalve-chest, b,, and valve and rod 0, actuated by an eccentric or othersuitahie device.

01 represents the water cylinder or pump of any usual construction, andfitted with induction and eduction pipes and valves in any wellknownmanner.

The piston-rods e and from the respective cylinders unite with thecross-head d, that is fitted to slide on the slides h. These parts, thusfar being well known, require no further description.

The cross-head g is made with cylindrical portions between the hub forthe piston-rods and the slides as at 1, around which are the boxes 2 2of the levers i, that at the bottom are united by links is to thefulcrum 3, or point of attachment to the engine-frame l, or

hangers from said frame. There may be one of these links it between thetwo levers i, or two of said links may be used, one outside of eachlever t. In both cases the links swing on their attaching-bolt 3' orfulcrum, as the upper ends of the levers i reciprocate in a straightline with the crors-head g and the lower ends of said levers i turn atthe- [I] OVBS- m is a connectingrod, attached at one end by a follower,7, acted upon by a screw, 8, that passes through a gib, 9, confined uponthe ends of the jaws." The boxes 2 2 arehence" held firmly in place, andcan. be setup to the part 1 of the cross-head in-case dressing oil thefaces of said boxes, that come in contact, and forcing them farther downin the tapering jaw at the end of the'lever i by the screw 8.

The fly-wheel is shown by the red circle, and

the position of the levers i at the opposite end of the stroke of theengine is also indicated by a red line. i v

' What we claim, and desire to secureby Letters Patent, is-

1. The arrangement of the levers 2', link Ir, and connecting-rod m, tothecrank of the flywheel shaft for the purposes and as specified.

2. The boxes 2 2, fitted in and forced together by the tapering jaws andconfined by the screw 8, for the purposes and as specified.

In witness whereof we have hereunto set our signatures this 12th day ofFebruary, A. D.

ABRAHAM oAMPBELL. CHARLES B. HARDIOK'.

Witnesses LEMUEL W. SERRELL, CHAS. H. SMITH.

point 4, where} they are attached to the links is, as the engine

